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4726699 
Journal Article 
Application of zinc and magnesium oxides nanoparticles in crosslinking of carboxylated butadiene-acrylonitrile rubber 
Lipinska, M; Zaborski, M 
2011 
Technical Proceedings of the 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011 
1 
335-338 
WOS:000394060200088 
In our work nanosized zinc oxides as well as magnesium oxide of different size and morphology for crosslinking of carboxylated butadiene-acrylonitrile rubber XNBR were applied. The relationship between the most important parameters influencing the activity during the ionic crosslinking process i.e specific surface area, particle size and morphology of oxides surface and the mechanical properties of obtained crosslinked materials were examined. The influence of used oxides on the curing kinetics, crosslink density of vulcanisates and the content of ionic crosslinks was determined. We conclude that zinc and magnesium oxides allowed to obtain vulcanisates with considerably better mechanical properties as compared to those crosslinked with 8 phr of commercially used microsized zinc oxide. Magnesium oxide nanoparticles showed higher activity in the crosslinking process and as a result vulcanisates with higher crosslink density and ionic crosslink content are achieved. Moreover, it was noticed that MgO nanoparticles have lower ability for agglomeration in the XNBR matrix and create smaller, well dispersed agglomerates. 
carboxylated butadiene-acrylonitrile rubber; nanoparticles; magnesium oxide; zinc oxide; ionic crosslinking